1. Department of Mechanical Engineering, Graduate School of Sciences and Technology for InnovationYamaguchi UniversityUbe Japan
2. International Institute of Carbon‐Neutral Energy ResearchKyushu UniversityFukuoka Japan
3. Department of Earth Resources EngineeringKyushu UniversityFukuoka Japan
4. Institute of Mathematics for IndustryKyushu UniversityFukuoka Japan